example18_3.java

不错的教程 适合中高级人员的使用

import java.awt.*;import java.awt.event.*;
import java.applet.*;
public class Example18_3 extends Applet implements MouseListener 
{  TextField text; Button button;
   TextArea textArea; 
   public void init() 
   {  text=new TextField(10); text.addMouseListener(this);
      button=new Button("按钮"); button.addMouseListener(this);
      addMouseListener(this);
      textArea=new TextArea(8,28);
      add(button);add(text);add(textArea);
   }
   public void mousePressed(MouseEvent e)
   {  if(e.getSource()==button)
      {textArea.append("\n在按钮上鼠标按下,位置:"+"("+e.getX()+","+e.getY()+")");
      }
     else if(e.getSource()==text)
      {textArea.append("\n在文本框上鼠标按下,位置:"+"("+e.getX()+","+e.getY()+")");
      }
    else if(e.getSource()==this)
     {textArea.append("\n在容器上鼠标按下,位置:"+"("+e.getX()+","+e.getY()+")");
     } 
   }
   public void mouseReleased(MouseEvent e) {}
   public void mouseEntered(MouseEvent e)  {}
   public void mouseExited(MouseEvent e) {}
   public void mouseClicked(MouseEvent e) 
   {  if(e.getClickCount()>=2)
      textArea.setText("鼠标连击，位置:"+"("+e.getX()+","+e.getY()+")");
   }
}